what to do with overflow?

I have a Quietflow 600 hang on overflow box... supposedly it should take
care of 600GPh. Also I have pump that is pumping from sump to the tank, it
is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite well, I
get my sump's return area empty very quickly, this means one thing that the
pump pumps faster than overflow can handle. Any thoughts on how to solve
this?

"TekCat" wrote in message
...
I have a Quietflow 600 hang on overflow box... supposedly it should take
care of 600GPh. Also I have pump that is pumping from sump to the tank,
it
is Dolphin DP 560. With 2' head loss the chart says it would output
460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite well, I
get my sump's return area empty very quickly, this means one thing that
the
pump pumps faster than overflow can handle. Any thoughts on how to solve
this?

throttle the output side of the pump, or get another/bigger overflow.

#ed_op#DIV#ed_cl#Place a Tee on the return line, and run a line back
to the sump, place a ball valve on this deversion line, and open it
slightly to devert some of the return ware back to the
sump. It should be possible to find apoint where the pump
and the overflow match
up.#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#Robert#ed_op#/DIV#ed_cl#
----------------------------------------
Usenet Gateway provided by http://www.CaptiveReefing.com

Get a biger sump, and/or improve your overflow.

Your water level in the sump will drop when the pump is
running, and go back up when the pump is not. Does the
tank come close to overflowing, or does the tank water
level run at a normal level?

Wayne Sallee


Charles Spitzer wrote:
"TekCat" wrote in message
...

I have a Quietflow 600 hang on overflow box... supposedly it should take
care of 600GPh. Also I have pump that is pumping from sump to the tank,
it
is Dolphin DP 560. With 2' head loss the chart says it would output
460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite well, I
get my sump's return area empty very quickly, this means one thing that
the
pump pumps faster than overflow can handle. Any thoughts on how to solve
this?


throttle the output side of the pump, or get another/bigger overflow.

the return area of the sump is only 3 gallons, so it gets "dry" fast. I
could try to make bigger sump, or ... maybe making new teeth in overflow
skimming box could do the trick?



"Wayne Sallee" wrote in message
link.net...
Get a biger sump, and/or improve your overflow.

Your water level in the sump will drop when the pump is running, and go
back up when the pump is not. Does the tank come close to overflowing, or
does the tank water level run at a normal level?

Wayne Sallee


Charles Spitzer wrote:
"TekCat" wrote in message
...

I have a Quietflow 600 hang on overflow box... supposedly it should take
care of 600GPh. Also I have pump that is pumping from sump to the tank,
it
is Dolphin DP 560. With 2' head loss the chart says it would output
460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite well,
I
get my sump's return area empty very quickly, this means one thing that
the
pump pumps faster than overflow can handle. Any thoughts on how to solve
this?


throttle the output side of the pump, or get another/bigger overflow.

How many gallons of fluctuation are you getting between
pump on, and pump off?
What's the size of your tank?

Wayne Sallee


TekCat wrote:
the return area of the sump is only 3 gallons, so it gets "dry" fast. I
could try to make bigger sump, or ... maybe making new teeth in overflow
skimming box could do the trick?



"Wayne Sallee" wrote in message
link.net...

Get a biger sump, and/or improve your overflow.

Your water level in the sump will drop when the pump is running, and go
back up when the pump is not. Does the tank come close to overflowing, or
does the tank water level run at a normal level?

Wayne Sallee


Charles Spitzer wrote:

"TekCat" wrote in message
...


I have a Quietflow 600 hang on overflow box... supposedly it should take
care of 600GPh. Also I have pump that is pumping from sump to the tank,
it
is Dolphin DP 560. With 2' head loss the chart says it would output
460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite well,
I
get my sump's return area empty very quickly, this means one thing that
the
pump pumps faster than overflow can handle. Any thoughts on how to solve
this?


throttle the output side of the pump, or get another/bigger overflow.

i'm curious, why would increasing the size of the sump work? i would think
that since the pump is emptying it, eventually either the pump will empty
the sump and run dry, or the tank will overflow because not enough water is
coming out of it.

"Wayne Sallee" wrote in message
link.net...
How many gallons of fluctuation are you getting between pump on, and pump
off?
What's the size of your tank?

Wayne Sallee


TekCat wrote:
the return area of the sump is only 3 gallons, so it gets "dry" fast. I
could try to make bigger sump, or ... maybe making new teeth in overflow
skimming box could do the trick?



"Wayne Sallee" wrote in message
link.net...

Get a biger sump, and/or improve your overflow.

Your water level in the sump will drop when the pump is running, and go
back up when the pump is not. Does the tank come close to overflowing, or
does the tank water level run at a normal level?

Wayne Sallee


Charles Spitzer wrote:

"TekCat" wrote in message
...


I have a Quietflow 600 hang on overflow box... supposedly it should
take
care of 600GPh. Also I have pump that is pumping from sump to the
tank, it
is Dolphin DP 560. With 2' head loss the chart says it would output
460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite
well, I
get my sump's return area empty very quickly, this means one thing that
the
pump pumps faster than overflow can handle. Any thoughts on how to
solve
this?


throttle the output side of the pump, or get another/bigger overflow.

Because I don't think that is the true problem. Maybe the
overflow lets the water fluctuate more than he wants, but
I think that the bigest problem that he is having, is that
the water volume in the sump is so small that it does not
give him adiquate room for that fluctuation.

Wayne Sallee


Charles Spitzer wrote:
i'm curious, why would increasing the size of the sump work? i would think
that since the pump is emptying it, eventually either the pump will empty
the sump and run dry, or the tank will overflow because not enough water is
coming out of it.

"Wayne Sallee" wrote in message
link.net...

How many gallons of fluctuation are you getting between pump on, and pump
off?
What's the size of your tank?

Wayne Sallee


TekCat wrote:

the return area of the sump is only 3 gallons, so it gets "dry" fast. I
could try to make bigger sump, or ... maybe making new teeth in overflow
skimming box could do the trick?



"Wayne Sallee" wrote in message
rthlink.net...


Get a biger sump, and/or improve your overflow.

Your water level in the sump will drop when the pump is running, and go
back up when the pump is not. Does the tank come close to overflowing, or
does the tank water level run at a normal level?

Wayne Sallee


Charles Spitzer wrote:


"TekCat" wrote in message
...



I have a Quietflow 600 hang on overflow box... supposedly it should
take
care of 600GPh. Also I have pump that is pumping from sump to the
tank, it
is Dolphin DP 560. With 2' head loss the chart says it would output
460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite
well, I
get my sump's return area empty very quickly, this means one thing that
the
pump pumps faster than overflow can handle. Any thoughts on how to
solve
this?


throttle the output side of the pump, or get another/bigger overflow.

Wayne Sallee wrote:
Because I don't think that is the true problem. Maybe the overflow lets
the water fluctuate more than he wants, but I think that the bigest
problem that he is having, is that the water volume in the sump is so
small that it does not give him adiquate room for that fluctuation.

Wayne Sallee


Charles Spitzer wrote:



Correct.

Depending on the size of the tank, if the water level raises 1/4 of an
inch it could be more than 1.5 gallons of water alone, let alone the
water in the pipes. 3 gallons is not much water, and most overflows
depending on the tooth arrangement can use up to 1/2 or even 3/4 of on
inch of water to build up before they are close to max flow, and if the
overflow needs 3/4 of on inch of water in a 72x18 tank, that would be
around 4 gallons of water, so the sump would run dry before the overflow
got to max flow rate..... An of course if he has a long pipe run with
large pipe there could be a gallon of water in the return pipe also.


Kim

The return section of your sump is too small. You'll need to keep
adding water just to keep up with what it sucks up, just until things
even out. Add too much water, and when the return pump is off, the sump
may overflow from that additional water volume.

Marc


TekCat wrote:
I have a Quietflow 600 hang on overflow box... supposedly it should take
care of 600GPh. Also I have pump that is pumping from sump to the tank, it
is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH.
So far so good, but the overflow doesn't seem to take 460gph quite well, I
get my sump's return area empty very quickly, this means one thing that the
pump pumps faster than overflow can handle. Any thoughts on how to solve
this?



--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com